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Cod sursa(job #254891)
#include<fstream.h>
int n,m,vect[500],a[500][500],i,j,s,k,min,x,y;
int modul(int k,int p)
{
if(k-p<0)
return -(k-p);
else
return (k-p);
}
int main()
{
ifstream f("cuburi2.in");
ofstream g("cuburi2.out");
f>>n>>m;
for(i=1;i<=n;i++)
f>>vect[i];
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(i==j)
a[i][j]=vect[j];
else
a[i][j]=vect[j]*modul(j,i);
for(i=1;i<=n;i++)
{
s=0;
for(j=1;j<=n;j++)
if(i==j)
a[i][j]=s;
else
{
s+=a[i][j];
a[i][j]=s;
}
}
for(i=1;i<=m;i++)
{
f>>x>>y;
min=100000;
for(j=x;j<=y;j++)
if(a[j][y]-a[j][x-1]<min)
{ min=a[j][y]-a[j][x-1];
k=j;
}
g<<k<<" "<<min<<"\n";
}
return 0;
}